winusb.dll - Analyze and How to Fix Errors

★★★★★ Verified File (27.08.2026)

Description

Creation date: 02.11.2006 13:16:18
File version: 6.0.6000.16386
Antivirus scan: ✅ OK
Category: System
File size: 27.6 kb.
Architecture: 64-bit (x64)
✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.
How to determine your system architecture: Press keys Win+R , enter symbols wmic os get osarchitecture , press Enter.

Digital file signature `winusb.dll`

Publisher: Microsoft Corporation
Issuer: Microsoft Windows Verification PCA
Encryption algorithm: SHA1
Time stamp: Nov 2 14:57:23 2006 GMT

A .dll (Dynamic Link Library) file, such as winusb.dll, contains code and data that can be used by multiple programs. This file serves as a bridge between the Windows operating system and specific hardware components or software applications.

MD5: ba490ac49db9e75232ba76c020eb160b
SHA-1: 0ee0e3a46e808ce4d5a1b1b3943ec4545968b98a
SHA-256: ec01f1e64b3cdbfd117b699fe3f979baf93cc9b787277c9a71fba07556b41af5

Where it is Used

winusb.dll typically relates to USB (Universal Serial Bus) devices. It supports communication between the Windows operating system and USB devices, facilitating their proper functioning within your system.

Errors Related to `winusb.dll`

"winusb.dll not found": This error occurs when the file is missing or has been corrupted, preventing programs from starting or operating correctly.
"missing winusb.dll": Indicates that the system cannot locate this file, which can cause various application errors and system instability.
"error loading winusb.dll": Signifies an issue during the process of loading the DLL into memory. This could be due to corruption or incompatibility issues.

File Security

The file characteristics, imports, and exports suggest that winusb.dll is part of the Windows system and not likely a virus. However, if you receive unexpected error messages or notice unusual behavior after downloading or installing any software, it's best to exercise caution.

winusb.dll was not found
The code execution cannot proceed because winusb.dll was not found
Failed to load winusb.dll
The procedure entry point ... could not be located in winusb.dll

1.
2a. 👉 Try to copy winusb.dll C:\Program Files\Your program\
2b. Also try to copy to bin, lib folders.
2c. Try to copy winusb.dll C:\Program Files (x86)\Your program\
👉 Before you replace any files, make sure to back them up.
How do I switch to the current Windows directory?
- Press and hold the key "win" on the keyboard and press the key "r" , then write %windir% and press the key Enter.
How to switch to the directory Program Files (x86) ?
- Press Win+R then enter %ProgramFiles(x86)% and after press Enter.

How to Fix Errors

Reinstall the Program: Sometimes, simply reinstalling the application that uses winusb.dll can resolve issues. Follow the uninstallation and reinstallation instructions provided by the software developer.
Update Windows: Ensure your operating system is up-to-date with the latest patches and updates. This can help resolve compatibility issues with various .dll files, including winusb.dll.
Manually Replace winusb.dll:

To replace the file, you might need to download a legitimate version from trusted sources or use system restore points if available. Be cautious when manually replacing system files as incorrect actions can lead to system instability.

FAQ

Is winusb.dll safe? Generally, it is safe, but always be cautious with file replacements or downloads from the internet.
What should I do if I get an error related to winusb.dll? Start by checking for software updates and reinstalling affected programs. If errors persist, consider seeking professional assistance.

Conclusion

Understanding the role of .dll files like winusb.dll can help you manage system issues more effectively. By addressing common errors and ensuring your system remains up-to-date, you can maintain a stable and efficient computing environment.

File Description

winusb.dll is a standard Microsoft Windows system file. It is the dynamic link library for the Windows USB (WinUSB) architecture.

Function: It allows user-mode applications to communicate with USB devices without writing a custom driver.
Importance: Essential for hardware communication, flashing devices, and connecting external USB peripherals.

Standard File Location

On a standard 64-bit Windows system, you will find this file in two main directories:

64-bit version: C:\Windows\System32\winusb.dll
32-bit version: C:\Windows\SysWOW64\winusb.dll

How to Fix winusb.dll Errors (Without Downloading)

Do not download this file from third-party websites. Those files often contain malware. Use these built-in Windows tools to fix the error for free.

1. Run SFC (System File Checker)

This tool scans and repairs corrupted or missing Windows system files.

Press the Windows Key.
Type cmd.
Right-click Command Prompt and select Run as administrator.
Type sfc /scannow and press Enter.
Wait for the scan to finish and restart your computer.

2. Run DISM (Deployment Image Servicing and Management)

If SFC fails, DISM repairs the underlying Windows system image.

Open Command Prompt as administrator (see step 1).
Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
Reboot your system after completion.

3. Reinstall Your USB Controllers

Corrupt USB drivers can cause this error.

Right-click the Start menu and select Device Manager.
Expand the Universal Serial Bus controllers section.
Right-click your USB host controller and select Uninstall device.
Restart your computer. Windows will reinstall the driver automatically.

4. Run Windows Update

Missing system updates can cause file conflicts.

Open Windows Settings (Press Win + I).
Go to Update & Security (or Windows Update).
Click Check for updates.
Install all pending updates and restart.

?? Next steps: Other versions:
️ winusb.dll 10.0.19041.1 32-bit (x86)
Similar files:
️winusbcoinstaller2.dll | ️winusbcoinstaller3.dll | ️winusbcoinstaller.dll | ️winusb.sys | ️adbwinusbapi.dll
Microsoft Corporation